|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | | NA |
| 1993 | | NA |
| 1994 | .25 | NA |
| 1995 | .24 | -2.11 % |
| 1996 | .24 | -0.03 % |
| 1997 | .04 | -82.95 % |
| 1998 | .03 | -22.41 % |
| 1999 | .03 | 0.00 % |
| 2000 | .06 | 99.47 % |
| 2001 | .10 | 50.40 % |
| 2002 | .13 | 33.33 % |
| 2003 | .13 | 0.00 % |
| 2004 | .16 | 24.66 % |
| 2005 | .13 | -19.78 % |
| 2006 | .10 | -25.00 % |
| 2007 | .06 | -33.33 % |
| 2008 | .10 | 50.00 % |
| 2009 | .13 | 33.33 % |
| 2010 | .06 | -50.00 % |
|
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